摘要
余吾煤业N2105工作面回采过程中进风巷道发生了2次严重的冲击地压事故,通过分析2次冲击地压事故的位置,运用FLAC^(2D)数值模拟软件研究了构造应力系数对巷道底板塑性区的影响范围,并结合工作面安装的微震监测系统的数据对模拟结果进行了验证,提出了采取巷帮煤体大直径钻孔的方式来降低和预防巷道底板冲击的发生。研究结果为褶皱构造区工作面巷道的稳定维护提出了一种新的监测和防治思路。
N2105working face of Yuwu mine mining process of the air coming roadway occurred2serious rockburst accident,by analyzingthe2rockburst accident location,using FLAC2D numerical study of tectonic stress influence force coefficient on plastic zone ofroadway floor simulation analysis software,and verified by the simulation results for the microseismic monitoring working face installationdata was proposed to take the lane help large diameter drilling coal way to prevent and reduce the impact of roadway floor.The researchresult provides a new monitoring and control method for the stability maintenance of the working face in the fold structure area.
作者
陈小争
CHEN Xiao-zheng(Yuivu Mining Co. ,Ltd. ,of Luan Group, Changzhi 046103 , China)
出处
《煤》
2017年第4期15-17,共3页
Coal
关键词
tf皱构造
底板冲击
数丨直模拟
敵震
大直径钻孔
fold structure
floor impact
numerical simulation
microquake
large diameter borehole
